Home Away kind of changed its format lately.
If you go to
http://www.homeaway.com/search/keywords:kissimmee and look below the houses they are featuring on top of the page, there are loads of communities. Pick a few communities, Wanda had mentioned Windsor Hills, Windsor Palms, Emerald Island--they are all close to Disney, maybe start with them for at least some practice. Click on the community and all the homes will come up. There will be some featured at the top but if you scroll down under the communities listed there will be pages of them.
On
www.vrbo.com, go to
http://www.vrbo.com/vacation-rentals/usa/florida/central-disney-orlando/kissimmee and it will divide the Kissimmee rentals into communities by division. Look at Kissimmee West and Kissimmee Central West will have communities nearer to Disney.
Home Away and VRBO are reputable sites and sites where individual home owners advertise their properties, so represents multiple communities. Both also have a guarantee program you can check out on their home pages.
As Wanda says, just choose some homes you like and send an inquiry. Look at the Availability Calendars see if they have good bookings in place, reviews, place a phone call and talk to the owners if you are really interested, and you'll get a feeling of whether you trust the owner or not. You have to gain trust. It is a two way game. You are trusting them for your product and they are trusting you with their home....like any other business relationship.
You can always check them out with their taxes paid, ask on here whether anyone has experience with them, etc.
It is a lot of fun in the shopping!
Sandy